Secunia Security Advisory – A vulnerability and a security issue have been reported in GNU M4, which can be exploited by malicious people to manipulate certain data or to potentially compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/65321/sa29671.txt
Source: https://packetstormsecurity.com/files/65321/Secunia-Security-Advisory-29671.html